Data recovery algorithms for Mac based hard drives use a recursive technique for probing into the tracks and sectors of each platter. Just like Linux based disks, the Mac disks also have long lasting images of old data traces in them which can be easily detected by software applications that are tailor made for the Mac systems. Most of the logical errors are handled by the data recovery software systems, without the need for hardware tools intervention. One of the most frequently used open source software applications for Mac systems is the REMO-recover application. You will be able to download it from the internet and use it with DIY approach after installation. The software can handle many of the issues related to file deletion, file system conversion from HFS to HFS-Plus, volume formatting, corruption of MBR, file transfer issues, bad sectors and so on.
Complex data loss scenarios with logical bugs in the HDD can occur when the entire volume is overwritten by virus attacks, accidental root volume formatting, OS breakdown and loss of primary partition. In such cases you will need the help of professional data recovery experts who will be able to mirror the entire disk from scratch with the help of deep probing hardware tools like the Microscopy tools. You can avail our technical expertise in recovering data from most complex logical and physical damages, including badly burnt PCB, damaged platters, broken read-write heads and PCB electronic components etc. We provide 100% safety and foolproof security for the integrity and privacy of your data.
Open source software apps
The steps involved in downloading and installing open source data recovery software for Mac drives are simple and fast. Once you complete the process of downloading, you need to double click on the downloaded link or file to get it installed. You must take care of hardware configurations needed by the system during installation. Once the software gets installed, it is ready to run. It is important for you to install the software only on disks which are in working condition. There is no point in trying to install the application onto your corrupt drive from which you are trying to recover lost data as the damages in that drive may eventually affect the primary functions of the recovery software!
Once you have installed the application, connect the failed drive to the main computer through USB port. Most of the modern HDD for Mac systems have a connecting port for USB cables. You don’t have to open the HDD casing as the software is going to fix only the logical bugs in the drive and recover lost and corrupt data from it.
Before connecting the HDD to the main computer you must ensure that it is free from any of the critical physical damages like mechanical, electrical and electronic failures. Only then you can be assured of reliable data recovery process which can give you 100% data restoration results from the failed disk into a working secondary storage device. You can transfer the recovered data into another USB drive or a free volume on the disk of main computer.
Once you start the application, you will be able to see the main screen of the application. In most of the open source systems the menu gives you options for recovering deleted files, deep scan and partition restoration in the main section. In addition, the software gives you options for file filtering, file and folder searches, change of restoration drives, scanning and recovery levels, bad sector operations etc.
Deep scan: – This method gives you all the options for diagnosing file systems, master boot records, file systems, deleted files and other features with sector wise scanning method. The software application may encounter errors when it comes across bad sectors from where reading data would not be normally possible for it. In such cases you can opt for RETRY a couple of times. If reading is still not possible you can click on the IGNORE option to make the application move ahead with other sectors.
Once the scanning process is complete, the system will display a list of files and folders from the failed disk. These are deleted, corrupt or other form of logically damaged files and folders. Before taking any action at this stage you should open the partition section in the display window and check for scanned and recognized logical partitions in your HDD.
If your disk has any logical partitions that are lost, they will be displayed in this section. But the files in those sections will not be normally shown in the main window. So you need to perform partition recovery before attempting to recover files from them. Once the partitions are restored, the main window of files and folders display automatically get updated gets updated with all the entries from the recovered partitions.
You need to select the files for recovery and then click on the SAVE option to restore them into their original location. In case the system is unable to save the recovered files and folders into their original location due to bad sectors, it may prompt you to specify an alternate location. In such cases you can choose a secondary storage device and save the files and folders over there.
Some of the software applications give you options for marking all the entries and restore them entirely into a secondary storage device. This is considered to be one of the safest methods of data recovery.
Bad sectors: – Most of the open source software applications for Mac storage devices offer you options for recovering data from bad sectors, but only when you purchase full version. Free versions can be used only for recovery of deleted files and partition restoration to a limited extent.
Even though the open source software applications cover 100s of file extensions, the volume of data recovery is limited to a few GB. If you wish to go beyond this limit and cover data recovery options from physically damaged drives, the viable option is to go for OEM and enterprise level software applications that are available with data recovery professionals.